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Waste to treasure:Reutilization of fluid catalytic cracking coke block as photothermal conversion material for water evaporation

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Particuology 2024年第5期88卷 62-70页

作者： Zhuwei Gao Chengxin Li Jingjing he Zhuo Wang Xinyu Qi Lan he Shihao Wang Zhongxin Liu School of Chemical Engineering and Technology Hainan UniversityHaikou 570228China TJ-YZ School of Network Science Haikou University of EconomicsHaikou 570203China School of Food Science and Engineering Hainan UniversityHaikou 570228China Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education Hainan UniversityHaikou 570228China Hainan Provincial Key Laboratory of Fine Chemicals Hainan UniversityHaikou 570228China

This study aims to analyze the coking process and propose an effective method for the reutilization of fluid catalytic cracking(FCC)coke ***,we analyzed the basic characteristics and chemical composition of FCC coke *** results showed that the main components were carbon,oxygen,and aluminum,accounting for 60.8%,26.6%,and 11.5%,*** the conventional catalytic cracking reaction temperature from 500℃ to 600℃,the formation of the first aromatic hydrocarbon was particularly important for the formation of *** condensation of oil-gas-entrained catalyst particles and their heavy components was the physical cause of coking,while the dehydrogenation condensation reaction of oil-gas heavy components was the chemical *** addition,the membrane prepared by powdered coke had excellent photothermal conversion ability,which could be heated to more than 110℃ within 360 s under two fixed light *** evaporation rate of photothermal water was 5.89 kg m^(2) h^(−1),which has great industrial application *** works provide a novel and effective method of separation membrane for the reutilization of FCC coke blocks.

关键词： Coking process Reutilization of FCC coke Carbonaceous deposition Membrane Photothermal conversion

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基于FPGA的OFDM系统设计与实现

电子技术应用 2007年第6期33卷 91-95页

作者：仇润鹤刘锦高刘佳华东师范大学信息学院上海200062 东华大学信息学院上海200051

建立了一个基于FPGA的可实现流水化运行的OFDM系统的硬件平台,包括模拟前端、基于FPGA的OFDM调制器和OFDM解调器。重点给出了OFDM调制解调器的实现构架,对FPGA实现方法进行了详细的描述,介绍了系统调试方法,并对系统进行了性能评价。

关键词： OFDM系统 FPGA 调制器解调器

The Role of Adipose Tissue-derived Exosomes in Chronic Metabolic Disorders

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Current Medical Science 2024年第3期44卷 463-474页

作者： Rui he Yong CheN Division of Endocrinology Department of Internal MedicineTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Laboratory of Endocrinology & Metabolism Key Laboratory of Vascular Aging of the Ministry of EducationTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Branch of National Clinical Research Center for Metabolic Diseases Wuhan430030China

Excessive fat deposition in obese subjects promotes the occurrence of metabolic diseases,such as type 2 diabetes mellitus(T2DM),cardiovascular diseases,and non-alcoholic fatty liver disease(NAFLD).Adipose tissue is not only the main form of energy storage but also an endocrine organ that not only secretes adipocytokines but also releases many extracellular vesicles(EVs)that play a role in the regulation of whole-body *** are a subtype of EVs,and accumulating evidence indicates that adipose tissue exosomes(AT Exos)mediate crosstalk between adipose tissue and multiple organs by being transferred to targeted cells or tissues through paracrine or endocrine ***,the roles of AT Exos in crosstalk with metabolic organs remain to be fully *** this review,we summarize the latest research progress on the role of AT Exos in the regulation of metabolic ***,we discuss the potential role of AT Exos as biomarkers in metabolic diseases and their clinical application.

关键词： exosome adipose tissue obesity diabetes chronic metabolic disorder miRNA

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关于网络时代的人工智能问题的探讨

移动信息 2016年第10期 139-140页

作者：何润胡旭吉林农业大学吉林长春130118

就网络时代背景下人工智能进行了分析,提出了与智能配网关联的人工智能特征以及现今人工智能的新发展成果,主要表现为对入侵信息的检测、信息检索的应用、机器人应用等.结合人工智能的未来发展趋势,提出了人工智能作为新时代计算机技术... 详细信息

就网络时代背景下人工智能进行了分析,提出了与智能配网关联的人工智能特征以及现今人工智能的新发展成果,主要表现为对入侵信息的检测、信息检索的应用、机器人应用等.结合人工智能的未来发展趋势,提出了人工智能作为新时代计算机技术的发展研究项目,其需要将理论知识与实践研究活动相结合以此来带动整个科技项目的进步.

关键词：网络时代人工智能

“三线一单”纳入城市发展战略环评技术体系研究

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中国环境科学 2018年第12期38卷 4772-4779页

作者：成润禾李巍李天威李元实刘小丽北京师范大学环境学院水环境模拟国家重点实验室北京100875 生态环境部环境工程评估中心北京100012

将生态保护红线、环境质量底线、资源利用上线和环境准入负面清单(即"三线一单")环境管理要求纳入战略环境评价(SEA),是完善城市发展SEA的潜在有效手段,然而如何将两者进行有机结合尚缺乏实践经验.本文探讨了"三线一单"在城市发展SEA各... 详细信息

将生态保护红线、环境质量底线、资源利用上线和环境准入负面清单(即"三线一单")环境管理要求纳入战略环境评价(SEA),是完善城市发展SEA的潜在有效手段,然而如何将两者进行有机结合尚缺乏实践经验.本文探讨了"三线一单"在城市发展SEA各主要评价环节的作用与评价内容,从重点任务和技术流程两方面建构了基于"三线一单"的城市发展SEA评价技术体系,并以鄂尔多斯绿色发展SEA为例进行检验.结果显示,对于鄂尔多斯这类空间尺度大、自然环境和产业发展异质性高的城市,该体系能够有效预防和解决战略实施过程中城镇无序扩张和产业结构失调造成的环境污染、生态功能退化和资源配置低效等问题,并推动完善城市分级分区差异化环境管控.

关键词：战略环境评价城市绿色发展三线一单技术体系鄂尔多斯

Nano-scale Reinforcements and Properties of Al-Si-Cu Alloy Processed by High-Pressure Torsion

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1253-1259页

作者： DONG Ying WU Siyuan he Ziyang LIANG Chen CheNG Feng he Zuwei QIAN Chenhao School of Mechanical Engineering Jiangnan UniversityWuxi 214122China Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Wuxi 214122China School of International Studies Renmin University of ChinaBeijing 100872China School of Engineering University of LiverpoolLiverpool L693GHUnited Kingdom

To improve the comprehensive mechanical properties of Al-Si-Cu alloy,it was treated by a high-pressure torsion process,and the effect of the deformation degree on the microstructure and properties of the Al-Si-Cu alloy was *** results show that the reinforcements(β-Si andθ-CuAl_(2)phases)of the Al-Si-Cu alloy are dispersed in theα-Al matrix phase with finer phase size after the *** processed samples exhibit grain sizes in the submicron or even nanometer range,which effectively improves the mechanical properties of the *** hardness and strength of the deformed alloy are both significantly raised to 268 HV and 390.04 MPa by 10 turns HPT process,and the fracture morphology shows that the material gradually transits from brittle to plastic before and after *** elements interdiffusion at the interface between the phases has also been effectively *** addition,it is found that the severe plastic deformation at room temperature induces a ternary eutectic reaction,resulting in the formation of ternary Al+Si+CuAl_(2)eutectic.

关键词： Al-Si-Cu alloy high-pressure torsion nano-scale reinforcements ternary eutectic

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云梯消防车运行状态的嵌入式监测系统

控制工程 2013年第1期20卷 51-54,58页

作者：张晓钟孙敏赫润章西安建筑科技大学机电工程学院陕西西安710055

为适应城市发展中高层与超高层建筑消防的需要,根据云梯消防车的工作原理和作业状态,得出了几种用于状态监测的可测量参数及其组合。利用嵌入式软硬件的结合,以单片机为控制核心,设计了云梯消防车的状态监测系统。基于Proteus和VB共同... 详细信息

为适应城市发展中高层与超高层建筑消防的需要,根据云梯消防车的工作原理和作业状态,得出了几种用于状态监测的可测量参数及其组合。利用嵌入式软硬件的结合,以单片机为控制核心,设计了云梯消防车的状态监测系统。基于Proteus和VB共同搭建的仿真平台,对云梯消防车运行时信号的采集、处理、显示、报警以及数据的传输进行了仿真,得到了下位机与上位机的监控界面。通过对仿真结果的比较分析,验证了本系统设计的合理可行性。该系统对高层消防车辆、起重机械的监测系统的开发与研究有着重要的参考价值。

关键词：云梯消防车状态监测 Proteus VB

Large eddy simulation study of 3D wind field in a complex mountainous area under different boundary conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第7期25卷 541-556页

作者： Yan LI Lei YAN Xuhui he School of Civil Engineering Central South UniversityChangsha410075China National Engineering Research Center for High-speed Railway Construction Changsha410075China Hunan Provincial Key Laboratory for Disaster Prevention and Mitigation of Rail Transit Engineering Structures Changsha410075China

Large eddy simulations generally are used to predict 3D wind field characteristics in complex mountainous *** simulation boundary conditions,such as the height and length of the computational domain or the characteristics of inflow turbulence,can significantly impact the quality of *** this study,we examined these boundary conditions within the context of the mountainous terrain around a long-span cable-stayed bridge using a wind tunnel *** sizes of computational domains and turbulent incoming wind velocities were used in large eddy *** results show that when the height of the computational domain is five times greater than the height of the terrain model,there is minimal influence from the top wall on the wind field characteristics in this complex mountainous *** the length of the wake region of the computational domain has negligible effects on the wind *** in the inlet boundary reduces the length of the wake region on a leeward hill with a low slope,but has less impact on the mean wind velocity of steep hills.

关键词： Large eddy simulation(LES) Spectral representation method Recycling method High mountainous canyon Wind characteristics Atmospheric boundary layer Computational domain

Lifetime-tunable circularly polarized luminescent system based on triplet-to-singlet Förster resonance energy transfer

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Science China Chemistry 2024年第9期67卷 2918-2922页

作者： Zhenyi he Zizhao Huang Xiang Ma Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Institute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Circularly polarized luminescence(CPL)materials have received widespread attention due to their remarkable performance and broad ***,current CPL material research primarily focuses on tunable color,intensity,and *** CPL with adjustable lifetime remains a significant ***,a series of CPL polymeric materials with tunable lifetime were obtained by employing phosphorescent terephthalic acid and chiral organic small molecule R/S-BNAF(a luminescent binaphthol derivative)to copolymerize with acrylamide in different *** was verified that this performance results from the different energy transfer efficiency between luminophores with varying ratios of the monomers for *** strategy to realize CPL with tunable lifetime by modulating the energy transfer efficiency will provide a new perspective to broaden the applications of CPL materials.

关键词： circularly polarized luminescence tunable lifetime Förster resonance energy transfer room temperature phosphorescence